Description (CNA)
SiYuan is a personal knowledge management system. From version 3.6.0 to before version 3.6.2, the SanitizeSVG function introduced in version 3.6.0 to fix XSS in the unauthenticated /api/icon/getDynamicIcon endpoint can be bypassed by using namespace-prefixed element names such as <x:script xmlns:x="http://www.w3.org/2000/svg">. The Go HTML5 parser records the element's tag as "x:script" rather than "script", so the tag check passes it through. The SVG is served with Content-Type: image/svg+xml and no Content Security Policy; when a browser opens the response directly, its XML parser resolves the prefix to the SVG namespace and executes the embedded script. This issue has been patched in version 3.6.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| siyuan-note / siyuan | affected >= 3.6.0, < 3.6.2 |
CWE
CWE-79
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-73g7-86qr-jrg3
- https://github.com/siyuan-note/siyuan/issues/17246
- https://github.com/siyuan-note/siyuan/releases/tag/v3.6.2
ADP enrichment
No English description supplied.
No references supplied.